Allowable Average Shear in Un-Stiffened Web for Beams made of Steel Grade 250 N/mm2

Definition of Allowable Average Shear in Un-Stiffened Web for Beams

Allowable average shear in an un-stiffened web for beams made of steel of grade 250 N/mm2 is the maximum shear stress that can be applied to the un-stiffened web of a beam made of steel of grade 250 N/mm2 without causing any damage or failure.

Explanation

When a beam is loaded with a transverse load, it experiences shear stress in addition to bending stress. The shear stress is maximum at the neutral axis and decreases towards the top and bottom of the beam. The web of the beam experiences this shear stress. If the shear stress exceeds the allowable average shear stress in the web, it may cause damage or failure of the beam.

The allowable average shear stress in the web of a beam depends on the grade of the steel used in the beam. For beams made of steel of grade 250 N/mm2, the allowable average shear stress in the un-stiffened web is 100 N/mm2.

Importance of Allowable Average Shear Stress in Beams

The allowable average shear stress in the web of a beam is an important parameter in the design of beams. It ensures that the beam can safely resist the shear stress induced by the transverse load without causing any damage or failure.

Conclusion

In conclusion, the allowable average shear stress in an un-stiffened web for beams made of steel of grade 250 N/mm2 is 100 N/mm2. This parameter is important in the design of beams to ensure that the beam can safely resist the shear stress induced by the transverse load without causing any damage or failure.

Shear stress = .40fy
= .40*250
=100